1990853015 has 32 divisors (see below), whose sum is σ = 2507604480. Its totient is φ = 1515571200.

The previous prime is 1990852999. The next prime is 1990853027. The reversal of 1990853015 is 5103580991.

It is not a de Polignac number, because 1990853015 - 2⁴ = 1990852999 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3820955 + ... + 3821475.

It is an arithmetic number, because the mean of its divisors is an integer number (78362640).

Almost surely, 2^1990853015 is an apocalyptic number.

1990853015 is a deficient number, since it is larger than the sum of its proper divisors (516751465).

1990853015 is a wasteful number, since it uses less digits than its factorization.

1990853015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 923.

The product of its (nonzero) digits is 48600, while the sum is 41.

The square root of 1990853015 is about 44618.9759519422. The cubic root of 1990853015 is about 1257.9973677681.

The spelling of 1990853015 in words is "one billion, nine hundred ninety million, eight hundred fifty-three thousand, fifteen".